111100202120201 has 4 divisors (see below), whose sum is σ = 126971659565952. Its totient is φ = 95228744674452.

The previous prime is 111100202120113. The next prime is 111100202120251. The reversal of 111100202120201 is 102021202001111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100202120201 is a prime.

It is a super-2 number, since 2×111100202120201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100202120251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7935728722865 + ... + 7935728722878.

It is an arithmetic number, because the mean of its divisors is an integer number (31742914891488).

Almost surely, 2^{111100202120201} is an apocalyptic number.

It is an amenable number.

111100202120201 is a deficient number, since it is larger than the sum of its proper divisors (15871457445751).

111100202120201 is an equidigital number, since it uses as much as digits as its factorization.

111100202120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871457445750.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111100202120201 its reverse (102021202001111), we get a palindrome (213121404121312).

The spelling of 111100202120201 in words is "one hundred eleven trillion, one hundred billion, two hundred two million, one hundred twenty thousand, two hundred one".